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This week Albin Carpentier and I helped to run JRules memory consumption benchmarks on IBM zSeries. Within R&D we have 24x7 remote access to a machine we rent from IBM in Dallas, Texas. A large bank in Europe is evaluating deploying JRules on the mainframe and Albin was able to quickly deploy the Rule Execution Server to WebSphere and DB2 running on z/OS so we could gather memory consumption statistics to help inform their decision. The... [Continue Reading]

Albin sent me some more benchmark results; an update to the results I published a couple of weeks ago . The initial results were intriguing because of the low heap usage on IBM z/OS, while we only ran tests with the Rule Execution Server using the J2SE and POJO rule sessions. For the second benchmark run Albin therfore tested WebSphere Application Server running on Windows, to provide a point of comparison with the same application server running... [Continue Reading]